You don't have to use post work to get good lighting.

Check out this image by Olivier. He only used Poser and a gel light.

http://www.runtimedna.com/mod/forum/photos/Message187432.jpg

www.runtimedna.com/mod/forum/photos/Message187433.jpg

And I've been having fun trying out Nerd's volumetric lighting tutorial in the tutorial area here.

http://www.renderosity.com/mod/tutorial/index.php?tutorial_id=57

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi